I managed to take the first half of Jimmy Ogle's manhole cover tour at lunch time yesterday. As well as learning things like why most manhole covers are round and what the holes in them are called, we ended up learning a lot about the history of Memphis, the Mississippi River and a bit about some of the historically significant buildings along the tour. As a result of this tour I will now be cursed with looking at manhole covers wherever I go. Tuesday tours come back around in September. Jimmy Ogle will also teach a Memphis History class this Fall at the University of Memphis as part of their Continuing Education program.